Most of these are already in the game to some degree, the dart minigames could be the basis for the look around to shoot and then have the place aoe button as a predictive fire mode with some edits.
I like the idea of airships as well, this game does have sky pirates and places like Dun Scaith floating around in the clouds so it's entirely possible to make pirate outposts on both sky and sea, we've been to one already in the Mhach questline.
When I get back to my PC I'll add some for the ideas like airship content.
